Harness connection for looms



Aug. 1, 1933. H. LUSSIER HARNESS CONNECTION FOR LOOMS Filed Feb. 25, 1933 lnvenTor.

Hanry Lussier b fmw& W- ATTys.

Patented Aug. 1, 1933 HARNESS .QONNECTION FOR LOOMS Henry'Lussier, Salem, Mass. Application February 23, 1933. Serial No. 657,942

' 3 Claims. (Cl.139'-88) This invention relates to improvements in'loom shedding apparatus and particularly to means for connecting the treadle'or other harness acturectly upon the invariable length of the harness,

connectors. A common construction employs leather straps for such connectors which are subject to a great deal of maladjustment due to stretching, slipping, etc.

I It is the chief object of the present invention to provide a harness connector which will eliminate defects in the fabric due to maladjustment of the shedding mechanism.

Theobject of the invention is further to provide a harness connector which when adjusted may be locked positively in adjusted position.-

The object of the invention is further to pro vide a cennector which is adaptable to and may be substituted for existing equipment upon the loom.

The object of the invention is further to propear from the following description in connection with the accompanying drawing and will be particularly pointed out in the claims.

In the drawing: Fig. 1 is a side elevation of the device showing a portion of the elements of the loom to which a it is connected.

Fig. 2 is a front 'view of the elements shown in Fig. 1. i

Fig. 3 is an enlarged sectional detail'view on the line 33, Fig. 1. I

To present a clear and accurate understanding vide a connector having two separate and inde-,

the adjusting screw 23.

' of the invention, a particular embodiment there- .of will be set forth herein.

The invention preferably is designed to connect the ,usual treadle 1 and the harness 2. The treadle may be operated by cams which are not illustrated or by any other suitable harness actuating means, such as a dobby or similar mechanism. The harness is or may be of usual construction. As herein shown, the mainframe 3 g of the harness contains heddles 4 and is provided at its lower edge with suitable downwardly extending link connectors 5 which support an equalizing bar 6, which in turn is provided with the usual staple-shaped connection 7.

The body of the connector is composed of two sections; a lower section 8 and an upper section 9. The lower section 8 of the body is provided at its lower end with an aperture 10 in which is received the end of the treadle 1. The bottom edge 11 of the aperture 10 is desirably shaped to be received within the usual notches 12 in thetreadle. The treadle l'is actuated by suitable cams, which are not shown, or by any other'actuating means. The upper end of the section 9 is providedwith a laterally extending arm 17 preferablyfo'rmed integral withthe upper end of the section. Upon the-end of the arm 1'? is formed a downwardly projecting vertical arm 18 spaced'from and extending parallel to the upper end of the section 9 and forming a vertical recess 19. therewith, with in which is received the lateral portion 20 of the staple 7. The lateral portion 20 may be provided with a reinforcing shoe 21 which may be of special construction or may be the shoe which is used in connection with a strap employed for connecting the treadle with the harness.

The lateral arm 1'7 is provided with a vertical screw-threaded aperture 22 within which is received an adjusting screw 23 the lower end of which engages the shoe 21' upon the staple. The screw 23 is desirably provided with a lock nut 24= by means of which the screw is locked in any desired position. The harness 2 is thus attached to the connector by reason of the position of the staple 7 within the recess 19 and by the engagement of the staple or the reinforcing shoe 21 with To adjust the connector the bolt 15 is loosened and the slack roughly taken up by relative movement between thetwo sections 8 and 9. This adjustment will be quickly and easily accomplished since it is not necessary at this time to introduce the final degree of tension. The bolt 15 is then tightened positively, locking the two sections together. Further and more accurate ad- 1 justment may then be made by moving the screw 23 downward. When the desired tension is reached the lock nut 24 is tightened, thus determining positively and infallibly the desired length of the connector. Those familiar with the art will readily appreciate the'advantage of the adjustment provided by the screw 23 since thisadjustment maybe made regardless of any pie-existing tension inthe connecting elements which may be either increased or decreased to the desired amount. The important point, however, that in initially setting up the loom the coarse adjustment provided by the serrations 13 and, 14 may be made with little effort, while the final tension and proper position of the harness maybe easily made thereafter by means or the screw 23' The accurate setting of the loom harness be: comes by means of this device so easily obtained that the loom operator is induced to maintain the harnesses in exact adjustment, thereby insuring uniformly high quality in the product. An portant point to benoted is the fact that the adjustment obtained by the screw 23 may be made independentlyof any other of, the'co-operating elements of the loom, it beingunnecessary to disconnect or. change the position of any or the parts to accomplish the proper adjustment.

This device not only provides means for readily and accurately obtaining the proper tension in the harness connecting elements, but. also provides a means of accurately coordinating the motion of the harness and'the extent of the. shed produced thereby with the associated elements of r the loom. i

readjust the harness connectors.

ing a large numberof harnesses, it is especially difiicult with the ordinary equipment to adjust the harnesses to present at all times a smooth even shed. The present invention reduces the labor of. such adjustment to a minimum and in- 2 sures accurate results.

Having thus described the invention, what is claimedas new, and desiredto be secured byLet- 'ters Patent, is:

.1. In combination with a loom having harness actuating means and a harness provided with a connecting staple projecting downwardly from the harness, a connector extending between the harness actuating means and said staple comprising a two-section longitudinally adjustable body, means for positively locking the two sections in adjusted position, means for securing the connector to the harness actuating means, a. screw having threaded engagement with the upper end of the body and adjustable longitudinally thereof acting by engagement at its lower end with the staple on the harness to adjust the efiective length of the connector, thereby constituting a supplemental adjustment to the adjustment provided by the two-section body and means to flexibly attach the connector to the staple.

2. In combination with a loom having harness actuating means and a harness provided with a connecting staple projecting downwardly from the harness, a connector extending between the harness actuating means and the staple comprising a two-section longitudinally adjustable body, means for positively locking the two sections in adjusted position, means at one end of the body to connect it to said harness actuating means, a fixed vertical arm spaced from and in parallel relation to the other end of said body forming a vertical recess within which is received adjustment to that provided by the adjustable body. I i

3. In combination with a loom having harness actuating means anda harness provided with a.

downwardly extending. connecting staple, a connector extending between said harness actuating means and said staple comprising a longitudinally adjustable body having two sections the adjacent ends of which overlap, interengaging transverse serrations on the overlapping portions of each of said sections, means to lock said sections in adjusted position, means flexibly to connect the connector with the harness actuating means, an arm extending laterally outward from the upper end of said body, a vertical arm extending downwardly from the outer end of said lateral arm spaced from and in parallel relation to the upper end of said body forming a vertical recess therewith within which is received the lateral portion of said staple, a vertically disposed adjusting screw having threaded engagement with said lateral arm and having its lower end projecting into said recess engaging the lateral portion of said staple and acting when adjusted to change the effective length of the connector thereby constituting supplementary adjusting means to that provided by the adjustable body section.

HENRY LUSSIER. 

